Here's a matching pair of nice vintage Jack LaLanne 5lb cast iron Weight Plates. They measure 6-3/8" diameter, 13/16" thick with a center hole measuring slightly over 1" diameter (almost 1-1/8"). These are part of a Jack LaLanne weight set that was originally purchased new in 1992. It saw little actual use and was stored indoors. Original black finish still looks decent but there is some paint wear. There's no rust. $30.00... Free U.S. Shipping! Please check my other listings if you're interested in vintage Jack LaLanne weight plates.